Car roof



April 17, 1928. I 1,666,115

c. D. BONSALL CAR ROOF File d May 29, 1926 2 Sheets-Sheen 1 E297, 2M1inventor:

msfltarneys.

April 1.1, 1928. 1,666,115

v C. D. BONSALL CAR ROOF Filed May 29, L926 2 Sheets-Shae 2 ra-wsngawg vi v nvenl'or" I a jhzw omnnns "DAVID BonsALL; or

V -MURPHY- COMPANY, on NEW imnnsylzvnnm.

nppH-catio n filed may 29,

My invention relates principally to single course all-steel car roofsandhas for itsprincipal objects" to simplify and cheapen theconstruction and application thereof to V the framework, and to enablethe sheets to accommodate themselves to the distortions of i a theframework incident to service conditions.

The invention consists. in the parts and in the combinationsaiid'arlaligements of parts '10 hereinafterdescribed and claimed. In theaccompanying drawings, which form part of this specification; andwherein like [symbols refer to like 'parts wherever theyoccur,

car roof embodying my invention; p v Fig. 2 1s an'enlarged transversesectlon through one-half of the roof on; the line22 in Fig. l; r

through the roof at the ridgeon the line 3- 3 inFig.1;f H v N Fig. 4. is'a fragmentaryplan view of the eaves portion of the roof inthe region ofone ofthe seams; I

Fig. 5 is a vertical sectionon the line 5 5 in Fig. 4:;

Fig. 6 is a horizontal section through the i depending eaves flanges ofa carline, seam I that is, said body portions 15. slope downwardly'frointhe side marginaifiang s '14 of thesh'eets to the middle thereof,whereby said sheets. are. substantially trough-shaped; i in. transversesection: The 'trougheshaped' body portions 150i the sheets extend'from 4nd'to' end thereoffwhere the are curved downwardly and merge into theflat surfaces of the depending eaves flanges ofisaid sheets;

The lower edges of the depending eaves" V flanges 18 of the sheets'arepreferably made] "straight, whereby said eaves -fiangesare sides of thesheets than'at the cover androof 3 sheets on "the line in Fig, 7- is avertical cross-section through.

one 0f the seams'at the ridge; the section beingtaken' on the line 7j7in'Fig. 2;

side, plate on the line 8-8 in'Figf 5;

; -Fig. 9 is a perspective view of'the eaves end portion'of one of theroof sheets.w

connected by carlines B; it also lcoinprises metal roof sheets C whichspan the spaces.

betweenthe side'plates and carlines; and it also comprises seam covers DI that cover the -carlines and the adjacent side margins ofl' I V groof'sheets have a snug 'fitgover. the upper "side edges or corners ofthe carlines; and the wtop'sof the carlines between the adjacent'marginal edges of adjacent; seam flanges haye. raised orfupwardlyoflsetlmiddle porthe roof sheets from side plate to sideplate; Theroofsheets, carlines and seamcovers slope downwardlyfon opposite sides ofthe ridge toform'apitch or arcuate roof."

As shown in the drawings, theside plates 'erably arrangedwith one flangedown. and the other flange up and'facing outwardly. Each of thecarl-ines B is of substantially inverted channel-shaped section withoutri'rrsnnaerz, mmsnvanm, agnesia-:53. s

xnnsmeron, VPENNSYLVANIA, A CORPORATION on y 1 is a plan view of worsenof the Fig. 3 is a vertical longitudinal; section Fig. 8 is a similarsection taken at the The present roof comprises side plates deeper atthe Aare ofangular cross-section and are prefoAia noon 26. Seria1'No.1 12,509; J

standing horizontal flanges: 10. along' the lower edges of its sidewalls? The. end- 'por;

;tions of the carlinesreston and arerigidly secured to the side plates Aby rivets 11 that extend through the outstanding top flanges] of saidside plates andthe'lateral basefianges 10 of said carlines. 'Atthe endportions of the carlines, their topsare preferablycurved downwardlyand'merge intothe plane of the outer edges of the side plates.

lateral base flanges 10 of said canines. the ends thereof, where theyare provided with depending end flanges 12fthat. overhang'the" The. roofsheets C are'provided with de pending eaves flanges- 18 that r. arespaced away from the outer edges of the side plates A and the dependingendflanges' 12 of the car-lines B without being fastened theretol' Theside marginal portions of the roof sheets. C are offset upwardlyto formupstanding side marginal flanges 14 that terminateshort ofithedependingeaves flanges 13 of said that is, each seam flange l preferablycomsheets. Each of said side; seam flanges 14L is of substantiallyinvertedL-shaped section;

n'li

cavein directions transverse oftheirlength middle. I I

The angular side seam .flanges,14c of-the tions 16,. whose surfacesarefsubstantially fiush'with the upper surfaces of said flanges.

'covers,'whicl1 straddle the car-lines and the seam flanges, have a fullbearing against the carlines and seam flanges and thus firmly clamp theseam flanges to the earlines.

As shown inthe drawings, the seamcovers D are positively secured to thecarlines at the ridge and adjacentto thee'aves, preferably by rivets '17that pass through sald covers and theraised middle portions 16 oi theoar-lines. The seam covers are turned down at the eaves to cover theends of adjaoent sheet flanges and have de ending 'entl" flanges 18 thatoverhang the depending end flanges 12 of the earli nes and are rigidlysecured thereto by horizontal rivets 19. As showirin 6, the sidemarginal portions of the depending. end flangeslS of the seam covers areoiiset outwardly,- as at 20, to aceominodate theadjacent end portionso'lithe dependingeavesflanges'13 ofthe sheets, and are spaced I farenough from said eaves fiaiiges toper nit limited angular adjustmentthereotduring' the racking and weaving 0t the ear trainejin service.

The reamin -teale921 extend longitudinally of the car at the rltlge andare preterablyisupp'orte'd on and secured to the lateral top flanges offZ-shaped r nning-tome saddles 22 whose lateral base flanges rest on theseaiil covers ntl are seeured in position by means .or the'rivets thatsecure the ridge portionsof said seam oojvers to the 'carlines. Iidesired, the root frame may be further strengthened by securing a ridgepole or along the'ir sides by thefoarlines to which they ai'efirinlyelamped. in position to eX- cludethe weather; but th'at'in case of theistortiohotfithe Car frame, the sheets move with th e earlinesindependently ot the remaihder oft'h'e roof irame and'a-re adapted toaccommodate themselves to such distortlon by the flex ng or bendlng oftheir concav ely curved body portions. It is also noted that the coneavebody portions'or" the sheets operate to convey moisture on the seamstothe middle of the sheets, thereby greatly simplifying the problem of'n'i'aking a water tight seam betweenadjaeent sheets.

It is f noted that the 'coneavely" curving "or bowing of thebodyportionsof thesheets enables said body portions to be supported direetlyonthepurlins andside-pl'ates in the plane of the bottoms of the earlineswithout the use of filler strips or purlins that are offset upwardlybetween earlines, thereby permitting the use with relatively deepearlines of relatively shallow seam eovers'and roof sheetshavingrelatively shallow seam flanges.

th'er advantages of the above roof are its great simplicity andcheapness of constructionfthe faiiility with which it may be applied,and the elimination oi perforations "in 'thesheets @bviously, thehereiribetore described eonstruetion admits of considerable mod ficationwithout departiiilg from thefinvention;

there'lbre 'I do not 'to be limited to the precise arrangement shown anddescribed. What l elair'n'is: I I 1. A oar ro'of comprising'side plates,oarlines extending from side plate to side plate; a roof sheetsentending from side plate to side plate betweene'arlines, saidrOofsheetS having upwardly offset marginal portions rest- 'ing'on "thetops of said'oarlines,and'seam covers positively secured tosaid'carlinesand arlingoilset marginal portions of the sheets, said seamcovers snugly enlbraeing the upwardly offset marginal portions of thesheets iengaged therewith, thereby. firmly clamping said portions/tosaid carlin'es.

2. Acar roof eoinprising side pretre tmlines extending from side platetosideplat'e, roof sheets ezitiidi'rig from side plate to side platebetween carlines, andfhavin'g upwardly ofiset side marginal portionsadapted to bearagain'stthe top and sides "of said oarlines, and seemcovers rigidly seeured to said'carlines {and snugly embracing "the"upwardly ofiset niarginsof saidsheet's whereby said upwardly ofisetmarginal portions of said sheets are firmly clamped to saidoarlinesfa'gainst nioi'iement transverselyfthereof.

3. Aear roof comprising ls'ideplatesfcf ar I lines extending fromsideplate tosi'deplate,

roof sheets extending from side plate to sldeplate between dar1ines,'said rootlshets comprising bowed body portioiis 'adaptedft'o besprung into plaoe between" adjacent earlines "and upwardly ofi'setmargihal portions overlapping the tops of 'said earlines, and seamcovers "straddling said ear-lines and snugly embracing the fup'wardly"oliset pc:-

tions of said sheets toffirn ly clampsaid pon tlons to said "carhne'sag'alnst "movement transversely thereoit".

'4. A earfroof 'eomprisin g side parses lines extending from'si'de'plateto'side plate,

roof sheets extending from side plate'to side plate between earline's,said roof sheets having "concave body portions adapt-ed" to be sprunginto place between adj aeent ca'rlin'es t and upwardly and oiitwardlydirected side marginal flanges bearlngagalnst'the sides and top surfacesof sa'ldtarh'nes, and'seam iso - covers secured rigidly to said carlinesand snugly embracin the side marginal flangesof said sheets to rmlyclamp said flangesto said carlines. V

5. A car roof comprising lside' plates, carlines extending from'sideplate to side plate in directions transverse to the length ofsubstantially inverted L-shaped section that I fit over the upper sideedges of said carlines,

and seam covers secured to said carlines for firmly clamping theinverted L-shaped sheet I flanges thereto. I

6;- A car roof comprising side plates, relatively deep carlinesextending from side plate to side plate; roof sheets extending from sideplate to side plate, said roof sheets comprising bowed body portionsresting on the side plates between carlines and rela- .1

tively shallow upstanding side marginal flanges resting on the tops ofsaid carlin'es,

and relatively shallow seam caps secured to i the carlines and snuglyembracing themargi-.v 'nal flanges of said "sheets thereby firmlyclamping the sidemarginal flanges of said sheets to said vcarlines.

7. A car roof sheet comprising trans versely bowed body portions, havingat the sides thereof; outwardly bent upstanding flanges and at the endsthereofdepending flanges. l l i 8. A car roof sheetcomprisingaftransversely concave body portion having at the sidesthereof flanges of substantially L shaped section and at the endsthereof depending flanges that are deeper'at the sides of the sheet thanat the middle thereof. 1

Signed at New Ken day of May, 1926 CHARLES DAVID BoNsALL.

sington, 'Pa., this 24th

